package com.qualiti.javaweb.filtro;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest req = (HttpServletRequest) request;
		HttpSession session = req.getSession();
		
		if (req.getRequestURI().contains("javax.faces.resource")) {
			chain.doFilter(request, response);
		} else if (session.getAttribute("usuario") != null) {
			chain.doFilter(request, response);
		} else {
			if (req.getRequestURI().contains("perfil") || req.getRequestURI().contains("edicaoLivro")) {
				((HttpServletResponse) response).sendRedirect("login.jsf");
			}
			chain.doFilter(request, response);
		}
	}

	@Override
	public void destroy() {
	}
}
